THIS IS A SODASTREAM CABANATOR BEVERAGE MAKER, ONE CARBONATOR CANISTER (included) MAKES 60 LITERS AND A CANNISTOR REFILL IS $14.95 AT WAL-MART. INCLUDES A BEVERAGE BOTTLE, AND COMPLETE INSTRUCTIONS, WITH THE CARBONATOR CARTRAIGE PARTIALY FULL. 3 OPENED FLAVORS ALSO, IF YOU WANT THEM. YOU JUST GO TO THE COURTOUSY DESK AT WAL-MART AND THEY HAVE THE EXCHANGE CANNISTERS, WHEN YOU NEED A REFILL. OUR KIDS HAVE MOVED OFF & WE DO'T DRINK SODA. $25.00, AND IF YOU WANT A SPARE CARTRIAGE AN ADDITIONAL $10.00 THAT WAY YOU ALWAYS HAVE A FULL ONE ON HAND. THAT WOULD BE $35.00 FOR THE WHOLE UNIT INCLUDING A SPARE CABONATOR CARTRAGE 306 775 7546 WE ARE OU BY DRYCREEK SCHOOL.